Thickness measurement of frequency domain OCT on photoreceptor cell layer in diabetic retinopathy

Autor: Ying Xie, Xiao-Wei Yang, Wei Zhang, Wen-Shuai Zhao
Jazyk: angličtina
Rok vydání: 2017
Předmět:
Zdroj: Guoji Yanke Zazhi, Vol 17, Iss 12, Pp 2345-2347 (2017)
Druh dokumentu: article
ISSN: 1672-5123
DOI: 10.3980/j.issn.1672-5123.2017.12.40
Popis: AIM: To compare the outer nuclear layer(ONL), inner and outer segments(IS/OS), photoreceptor cell layer in healthy people and diabetic retinopathy by frequency-domain optical coherence tomography(OCT). METHODS: Totally 100 eyes of 50 healthy people were selected as control group. According to conventional mydriasis for examination of fundus and fundus fluorescein angiography(FFA)examination, all diabetic cases were divided into 3 groups: normal retina group(NDR), non-proliferative diabetic retinopathy group(NPDR), proliferative diabetic retinopathy group(PDR). Using OCT measure the thickness of ONL, IS/OS and photoreceptor cell layer of fovea and parafovea(nasal side and temporal side)in the four groups. RESULTS: Compared with the control group, the ONL and photoreceptor cell layer's thickness of macular fovea and temporal parafovea in NPDR group and PDR group were statistically significant(all PP>0.05). The IS/OS of macular fovea and temporal parafovea was not significantly different among those groups(P>0.05). The thickness of different layers of nasal parafovea were not different(P>0.05).CONCLUSION: The thickness of macular fovea and temporal parafovea has relation with degree of DR; the change of photoreceptor cell layer's thickness occurs mainly in ONL, but IS/OS no change; the change in temporal parafovea more obvious than in nasal parafovea. Frequency-domain OCT can quantitatively and qualitatively observe the subtle diabetic macular changes in diabetic patients with macular disease, and provides a reliable detection for the early diagnosis and treatment.
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